EAGLE CO AP, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(052454) EAGLE FAA AIRPORT
From Year=1904 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 0 1 22 118 346 578 791 736 474 181 13 1 3260
40 S 0 1 23 141 487 1066 1857 2592 3066 3246 3260 3260 3260
45 M 0 0 3 41 206 429 636 581 327 78 2 0 2303
45 S 0 0 3 45 251 679 1315 1896 2223 2301 2303 2303 2303
50 M 0 0 0 8 94 283 481 426 189 20 0 0 1500
50 S 0 0 0 9 102 385 866 1292 1481 1500 1500 1500 1500
55 M 0 0 0 1 26 151 326 272 78 2 0 0 855
55 S 0 0 0 1 26 177 504 775 853 855 855 855 855
60 M 0 0 0 0 3 55 175 128 18 0 0 0 378
60 S 0 0 0 0 3 57 232 360 378 378 378 378 378
Corn Growing Degree Days
50 M 1 6 46 144 293 434 534 507 387 226 43 2 2623
50 S 1 7 53 197 490 923 1457 1963 2351 2577 2620 2623 2623
M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered
Western Regional Climate Center, wrcc@dri.edu